Knob-free can opener

Abstract

The invention discloses a knob-free can opener which comprises a base, a power mechanism, a cutting rotation driving mechanism, a cutting mechanism and a handle, the power mechanism is connected with the cutting rotation driving mechanism, the cutting rotation driving mechanism and the cutting mechanism are in an engaged state, and the handle comprises an upper swing handle and a lower swing handle. The upper swing handle and the lower swing handle are rotatably arranged on the upper side and the lower side of the base and connected with the power mechanism respectively, and when the upper swing handle and the lower swing handle are opened / closed, the cutting rotation driving mechanism can be driven to rotate in the same direction. According to the can opener without the rotary knob, when the handle is opened, the cutting rotation driving mechanism can be driven to rotate clockwise, when the handle is closed, the cutting rotation driving mechanism can be driven to rotate clockwise as well, and therefore the cutting rotation driving mechanism rotates in the same direction all the time, and the can opener is reasonable in structural design and more convenient and simpler to operate; the efficiency is multiplied, and a knob in the prior art can be simplified, so that the whole appearance of the can opener is more attractive and elegant.

Description

Technical Field

[0001] This invention relates to the field of can-opening tools, and in particular to a knobless can opener. Background Technology

[0002] For convenience, people process cooked foods and seal them in cans. When needed, they can simply open the can lid to eat, which is very quick. Since there are many varieties of canned food, most of which are sealed in tin cans, a blade is needed to cut open the lid to remove the food. Therefore, can openers have appeared on the market, and the most commonly used can openers are manual can openers and electric can openers.

[0003] However, existing manual can openers generally have a handle, a rotating assembly, and a cutting assembly. The rotating assembly is connected to a knob, which is turned manually to rotate the assembly. The cutting assembly then works in conjunction with the rotating assembly to cut the can lid. However, this type of can opener requires a knob to drive the rotating assembly, which makes it inconvenient to operate. Furthermore, the addition of a knob makes the overall shape of the can opener less aesthetically pleasing. Therefore, existing manual can openers need to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a knobless can opener that is reasonably designed, easy to operate, and aesthetically pleasing.

[0005] To solve the above technical problems, the present invention can be implemented using the following technical solutions: A knobless can opener includes a base, a power mechanism, a cutting and rotating drive mechanism, a cutting mechanism, and a handle. The power mechanism, the cutting and rotating drive mechanism, and the cutting mechanism are respectively mounted on the base, and the power mechanism is connected to the cutting and rotating drive mechanism. The cutting and rotating drive mechanism and the cutting mechanism are in an engaged state. The handle includes an upper swing handle and a lower swing handle, which are rotatably disposed on the upper and lower sides of the base and are respectively connected to the power mechanism. When the upper swing handle and the lower swing handle are opening / closing, they will drive the power mechanism to run, and the power mechanism will drive the cutting and rotating drive mechanism to rotate in the same direction.

[0006] In one embodiment, the power mechanism includes a power gear, ratchet unit I, ratchet unit II, transmission gear, and ratchet spring. The power gear is connected to the handle and ratchet unit I, respectively. Ratchet unit I and ratchet unit II are connected to the cutting rotation drive mechanism, respectively. The transmission gear is connected to ratchet unit I and ratchet unit II, respectively. The two ends of the ratchet spring abut against ratchet unit I and ratchet unit II, respectively.

[0007] In one embodiment, the ratchet unit I includes a driving fixed ratchet I and a driven sliding ratchet I. The driving fixed ratchet I is fixedly connected to the power gear, and one-way teeth I are respectively provided on the driving fixed ratchet I and the driven sliding ratchet I. The one-way teeth I of the driving fixed ratchet I mesh with the one-way teeth I of the driven sliding ratchet I. The driving fixed ratchet I is also provided with bevel teeth I that mesh with the transmission gear.

[0008] In one embodiment, the ratchet unit II includes a driving fixed ratchet II and a driven sliding ratchet II. The driving fixed ratchet II and the driven sliding ratchet II are respectively provided with one-way teeth II. The one-way teeth II of the driving fixed ratchet II mesh with the one-way teeth II of the driven sliding ratchet II. The driving fixed ratchet II is also provided with bevel teeth II that mesh with the transmission gear.

[0009] In one embodiment, the meshing direction of the active fixed ratchet I and the driven sliding ratchet I is opposite to the meshing direction of the active fixed ratchet II and the driven sliding ratchet II.

[0010] In one embodiment, the cutting rotation drive mechanism includes a roller rod, a drive shaft, a wedge sleeve, a wedge friction plate, and a through pin. One end of the roller rod has a roller disc, and the other end extends into the base. The wedge sleeve and the wedge friction plate are respectively sleeved on the roller rod, and the wedge friction plate is stacked on the wedge sleeve. One end of the drive shaft is connected to the wedge sleeve, and the other end is connected to ratchet unit I and ratchet unit II respectively. The drive shaft and the roller rod are located on the same axis. A limit hole is opened on the roller rod, and the through pin is inserted into the limit hole to limit the wedge friction plate and the wedge sleeve. A bushing is also sleeved on the roller rod, and a return spring is provided between the bushing and the roller disc.

[0011] In one embodiment, one end of the drive shaft is provided with a connector, which is sleeved with a wedge sleeve, and the other end passes through ratchet unit I and ratchet unit II, and is connected to driven sliding ratchet I and driven sliding ratchet II respectively.

[0012] In one embodiment, both the upper and lower swing handles are provided with racks that mesh with the power gear.

[0013] In one embodiment, the base is further provided with a reversing reset mechanism, which includes a pressing member and a spring. The pressing member can act on the driven ratchet I and the driven ratchet II, and the spring can elastically reset the pressing member. The pressing member has an inclined pressing surface and a stop portion. When the pressing member is pressed down, the inclined pressing surface acts on the driven ratchet I, thereby disengaging the driven ratchet I from the driving ratchet I. The stop portion limits and presses against the driven ratchet II.

[0014] In one embodiment, the cutting mechanism includes a fixed locking pin shaft, a cutting wheel, and a support wheel. An installation groove is provided on the base, the fixed locking pin shaft passes through the installation groove, and the cutting wheel and the support wheel are respectively sleeved on the fixed locking pin shaft and located in the installation groove. Beneficial effects

[0015] This invention relates to a knobless can opener, in which an upper and lower handle are respectively positioned on the upper and lower sides of a base. When the upper and lower handles are opened, they drive a power mechanism to rotate, which in turn drives a cutting rotation drive mechanism to rotate clockwise. When the upper and lower handles are closed, they again drive the power mechanism to rotate, which in turn drives the cutting rotation drive mechanism to rotate clockwise. The rotating cutting rotation drive mechanism, in conjunction with the cutting mechanism, cuts the can lid. Ultimately, by opening and closing the upper and lower handles, the cutting rotation drive mechanism always rotates clockwise. This design makes the can opener structurally sound, easier and simpler to operate, significantly increases cutting efficiency, eliminates the need for a knob in existing technologies, and makes the overall appearance of the can opener more aesthetically pleasing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the knobless can opener of the present invention; Figure 2 This is an exploded view of the knobless can opener of the present invention; Figure 3 A cross-sectional view of the knobless can opener of the present invention. Figure 1 ; Figure 4 This is an exploded view of the power mechanism of the knobless can opener of the present invention; Figure 5 This is a schematic diagram of the ratchet unit I of the knobless can opener of the present invention; Figure 6 This is a schematic diagram of the ratchet unit II of the knobless can opener of the present invention; Figure 7 This is an exploded view of the cutting and rotating drive mechanism of the knobless can opener of the present invention; Figure 8 This is a schematic diagram of the pressing component structure of the knobless can opener of the present invention; Figure 9 A cross-sectional view of the knobless can opener of the present invention. Figure 2 .

[0017] As shown in the attached diagram: 100. Base; 110. Mounting slot; 200. Power mechanism; 210. Power gear; 220. Ratchet unit I; 221. Driving fixed ratchet I; 222. Driven sliding ratchet I; 223. One-way gear I; 224. Bevel gear I; 230. Ratchet unit II; 231. Driving fixed ratchet II; 232. Driven sliding ratchet II; 233. One-way gear II; 234. Bevel gear II; 240. Transmission gear; 250. Ratchet spring; 300. Cutting rotary drive mechanism; 310. Roller rod; 311. Roller disc; 312. Limiting hole; 320. Drive shaft; 321. Connector; 330. Wedge sleeve; 340. Wedge friction plate; 350. Through pin; 360. Bushing; 370. Return spring; 400. Cutting mechanism; 410. Fixed locking pin shaft; 420. Cutting wheel; 430. Support roller; 500. Handle; 510. Upper swing arm; 520. Lower swing arm; 530. Rack; 600. Reverse reset mechanism; 610. Pressing element; 611. Inclined pressing surface; 612. Stop block; 620. Spring piece. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please see Figures 1 to 9A knobless can opener includes a base 100, a power mechanism 200, a cutting and rotating drive mechanism 300, a cutting mechanism 400, and a handle 500. The power mechanism 200, the cutting and rotating drive mechanism 300, and the cutting mechanism 400 are respectively mounted on the base 100, and the power mechanism 200 is connected to the cutting and rotating drive mechanism 300. The cutting and rotating drive mechanism 300 and the cutting mechanism 400 are in an engaged state. The handle 500 includes an upper swing handle 510 and a lower swing handle 520, which are rotatably disposed on the upper and lower sides of the base 100 and are respectively connected to the power mechanism 200. When the upper swing handle 510 and the lower swing handle 520 are opening / closing, they will drive the power mechanism 200 to run, and the power mechanism 200 will drive the cutting and rotating drive mechanism 300 to rotate in the same direction.

[0022] Specifically, in this embodiment, the upper swing handle 510 and the lower swing handle 520 of the handle 500 are respectively disposed on the upper and lower sides of the base 100, while the power mechanism 200, the cutting rotation drive mechanism 300, and the cutting mechanism 400 are respectively disposed on the base 100. The upper swing handle 510 and the lower swing handle 520 are respectively connected to the power mechanism 200, which in turn is connected to the cutting rotation drive mechanism 300. When it is necessary to cut the can lid, the user places the can lid between the cutting rotation drive mechanism 300 and the cutting mechanism 400, which then engage the can lid. The user then opens the upper swing handle 510 and the lower swing handle 520. As the upper swing handle 510 and the lower swing handle 520 open, they drive the power mechanism 200 to rotate, which in turn drives the cutting mechanism 400 to cut. The rotary drive mechanism 300 rotates clockwise. Similarly, when the user closes the upper handle 510 and the lower handle 520, the upper handle 510 and the lower handle 520 will also drive the power mechanism 200 to rotate. While the power mechanism 200 is rotating, it will also drive the cutting rotary drive mechanism 300 to rotate clockwise. When the cutting rotary drive mechanism 300 rotates clockwise, it will cooperate with the cutting mechanism 400 to cut the can lid. Finally, by opening or closing the upper handle 510 and the lower handle 520, the power mechanism 200 is driven to run. When the power mechanism 200 is running, it will make the cutting rotary drive mechanism 300 always rotate in one direction. This makes the can opener's structural design reasonable and its operation more convenient and simple. It can also simplify the knob in the existing technology and make the overall appearance of the can opener more beautiful and elegant.

[0023] Please see Figures 2 to 4In order to enable the upper swing handle 510 and the lower swing handle 520 to drive the power mechanism 200 to rotate when opening / closing, in this embodiment, racks 530 are provided on both the upper swing handle 510 and the lower swing handle 520 of the handle 500. The racks 530 can be integrally formed with the upper swing handle 510 and the lower swing handle 520, or they can be set separately, depending on the actual needs. The racks 530 can drive the power mechanism 200 to run, thereby causing the cutting rotation drive mechanism 300 to rotate, so as to realize the cutting function of the can lid.

[0024] The power mechanism 200 includes a power gear 210, ratchet unit I 220, ratchet unit II 230, transmission gear 240, and ratchet spring 250. The power gear 210 meshes with the racks 530 of the upper swing handle 510 and the lower swing handle 520 and is connected to the ratchet unit I 220. The cutting rotation drive mechanism 300 is connected to the ratchet unit I 220 and the ratchet unit II 230 respectively. The two ends of the ratchet spring 250 abut against the ratchet unit I 220 and the ratchet unit II 230 respectively. When the upper handle 510 and the lower handle 520 are open, they drive the power gear 210 to rotate via the rack 530. The power gear 210 then drives the ratchet unit I 220 to rotate, and the ratchet unit I 220 simultaneously drives the cutting rotary drive mechanism 300 to rotate clockwise. When the upper handle 510 and the lower handle 520 are closed, they similarly drive the power gear 210 to rotate via the rack 530. The power gear 210 then drives the ratchet unit I 220 to rotate, and the ratchet unit I 220 drives the ratchet unit II 230 to rotate via the transmission gear 240. The ratchet unit II 230 simultaneously drives the cutting rotary drive mechanism 300 to rotate clockwise, thus ensuring that the cutting rotary drive mechanism 300 always rotates in one direction, thereby cutting the can lid.

[0025] Please see Figures 2 to 6In order for the ratchet unit I 220 and ratchet unit II 230 to effectively drive the cutting rotation drive mechanism 300 to rotate, the ratchet unit I 220 in this embodiment includes a driving fixed ratchet I 221 and a driven sliding ratchet I 222. The driving fixed ratchet I 221 is fixedly connected to the drive gear 210 by screws / bolts, and one-way teeth I 223 are respectively provided on the driving fixed ratchet I 221 and the driven sliding ratchet I 222. The one-way teeth I 223 of the driving fixed ratchet I 221 and the one-way teeth I 222 of the driven sliding ratchet I 222 are connected. 223 mesh with each other. The driving fixed ratchet I 221 is also provided with bevel teeth I 224 that mesh with the transmission gear 240. The ratchet unit II 230 includes a driving fixed ratchet II 231 and a driven sliding ratchet II 232. The driving fixed ratchet II 231 and the driven sliding ratchet II 232 are respectively provided with one-way teeth II 233. The one-way teeth II 233 of the driving fixed ratchet II 231 mesh with the one-way teeth II 233 of the driven sliding ratchet II 232. The driving fixed ratchet II 231 is also provided with bevel teeth II 234 that mesh with the transmission gear 240.

[0026] When the upper handle 510 and the lower handle 520 are open, the power gear 210 drives the active fixed ratchet I 221 to rotate. When the active fixed ratchet I 221 rotates, it drives the driven sliding ratchet I 222 to rotate through the meshing of the one-way teeth I 223. In turn, the driven sliding ratchet I 222 drives the cutting rotation drive mechanism 300 to rotate. When the active fixed ratchet I 221 drives the driven sliding ratchet I 222 to rotate, the active fixed ratchet II 231 and the driven sliding ratchet II 232 will jump between each other without the application of external force. Therefore, when the upper handle 510 and the lower handle 520 are open, only the ratchet unit I 220 drives the cutting rotation drive mechanism 300 to rotate.

[0027] When the upper swing handle 510 and the lower swing handle 520 are closed, the power gear 210 drives the active fixed ratchet I 221 to rotate in the opposite direction. When the active fixed ratchet I 221 rotates in the opposite direction, if no external force is applied, the active fixed ratchet I 221 and the driven sliding ratchet I 222 will jump between them and cannot drive the driven sliding ratchet I 222 to rotate. Therefore, the ratchet unit I 220 will not act on the cutting rotation drive mechanism 300. At this time, the transmission gear 240 connects with the bevel teeth I 224 of the active fixed ratchet I 221 and the active fixed ratchet II 23 respectively. The bevel teeth II234 of ratchet 1 engage, causing the active fixed ratchet I221 to drive the active fixed ratchet II231 to rotate. The active fixed ratchet II231, through the engagement of the one-way teeth II233, will drive the driven sliding ratchet II232 to rotate, which in turn drives the cutting rotary drive mechanism 300 to rotate. Ultimately, the ratchet unit I220 and the ratchet unit II230 can reasonably drive the cutting rotary drive mechanism 300 to rotate, and ensure that the cutting rotary drive mechanism 300 always rotates in one direction.

[0028] In order for ratchet unit I 220 and ratchet unit II 230 to alternately drive the cutting rotary drive mechanism 300 to rotate, the meshing direction of the driving fixed ratchet I 221 and the driven sliding ratchet I 222 is opposite to the meshing direction of the driving fixed ratchet II 231 and the driven sliding ratchet II 232.

[0029] In specific operation, the can lid is placed between the cutting rotary drive mechanism 300 and the cutting mechanism 400. The cutting rotary drive mechanism 300 and the cutting mechanism 400 engage the can lid. At this time, the user opens the upper swing handle 510 and the lower swing handle 520 of the handle 500. When the upper swing handle 510 and the lower swing handle 520 are opened, they will drive the power gear 210 to rotate. When the power gear 210 rotates, the active fixed ratchet I 221 connected to it will rotate. Since the driven sliding ratchet I 222 is connected to the active fixed ratchet I 221 through the one-way tooth I 223, the driven sliding ratchet I 222 will also rotate. At this time, the driven sliding ratchet I 222 will drive the cutting rotary drive mechanism 300 to rotate clockwise.

[0030] When the driving ratchet I 221 rotates, the driving ratchet II 231 will also rotate due to the drive gear 240. However, since the meshing direction of the one-way teeth II 233 of the driving ratchet II 231 and the driven ratchet II 232 is opposite to that of the driving ratchet I 221 and the driven ratchet I 222, the driving ratchet II 231 will not drive the driven ratchet II 232 to rotate when it rotates. At this time, when the power mechanism 200 is running, only the ratchet unit I 220 acts on the cutting rotary drive mechanism 300, while the driven ratchet II 232 and the driving ratchet II 231 in the ratchet unit II 230 will bounce through the ratchet spring 250. The driven ratchet II 232 will not act on the cutting rotary drive mechanism 300.

[0031] When the upper swing handle 510 and the lower swing handle 520 are closed, they will also drive the power gear 210 to rotate. When the power gear 210 rotates, the active fixed ratchet I 221 connected to it will also rotate. At this time, due to the one-way tooth I 223 (the meshing direction of the active fixed ratchet I 221 and the driven sliding ratchet I 222 is opposite to the meshing direction of the active fixed ratchet II 231 and the driven sliding ratchet II 232), the active fixed ratchet I 221 cannot drive the driven sliding ratchet I 222 to rotate. The driven sliding ratchet I 222 and the active fixed ratchet I 221 will jump between each other. Therefore, the ratchet unit I 220 cannot act on the cutting rotary drive mechanism 300.

[0032] Under the action of the transmission gear 230, the active fixed ratchet I 221 will drive the active fixed ratchet II 231 to rotate. When the active fixed ratchet II 231 rotates, due to the setting of the one-way tooth II 233 (the meshing direction of the active fixed ratchet I 221 and the driven sliding ratchet I 222 is opposite to the meshing direction of the active fixed ratchet II 231 and the driven sliding ratchet II 232), it can drive the driven sliding ratchet II 232 to rotate. When the driven sliding ratchet II 232 rotates, it will drive the cutting rotary drive mechanism 300 to rotate clockwise, so that the ratchet unit II 230 acts on the cutting rotary drive mechanism 300.

[0033] Ultimately, by ensuring that the meshing direction of the active fixed ratchet I 221 and the driven sliding ratchet I 222 is opposite to that of the active fixed ratchet II 231 and the driven sliding ratchet II 232, the upper swing handle 510 and the lower swing handle 520 of the handle 500 will drive the cutting rotary drive mechanism 300 to rotate in the same direction (clockwise) through the ratchet unit I 220 or the ratchet unit II 230, whether the handle is open or closed. This makes the can opener's structural design more reasonable and its operation more convenient and simple. At the same time, by opening / closing the handle 500, the cutting rotary drive mechanism 300 can be driven to rotate. Therefore, the knob in the prior art can be eliminated, the cutting efficiency can be doubled, and the overall appearance of the can opener can be made more beautiful and elegant.

[0034] In addition, transmission gears 240 are provided on both sides of ratchet unit I 220 and ratchet unit II 230. By providing transmission gears 240 on both sides, the transmission can be made more stable, thereby ensuring the transmission effect between transmission gears 240 and ratchet unit I 220 and ratchet unit II 230.

[0035] Please see Figure 3 , Figure 7 and Figure 9 The cutting rotation drive mechanism 300 in this embodiment includes a roller rod 310, a drive shaft 320, a wedge sleeve 330, a wedge friction plate 340, and a through pin 350. One end of the roller rod 310 has a roller disc 311, and the other end extends into the base 100. The wedge sleeve 330 and the wedge friction plate 340 are respectively sleeved on the roller rod 310, with the wedge friction plate 340 overlapping the wedge sleeve 330. A connector 321 is provided at one end of the drive shaft 320. After the connector 321 is sleeved with the wedge sleeve 330 and the drive shaft 320 is sleeved with the wedge sleeve 330 on the gear rod 310, the drive shaft 320 and the gear rod 310 will be on the same axis. The rotation of the drive shaft 320 will drive the gear rod 310 to rotate. The other end of the drive shaft 320 is inserted into the ratchet unit I 220 and the ratchet unit II 230, and is connected to the driven ratchet I 222 and the driven ratchet II 232 respectively.

[0036] To ensure that the driven ratchet I 222 and driven ratchet II 232 can drive the drive shaft 320 to rotate, the drive shaft 320 can have a square structure. Both the driven ratchet I 222 and driven ratchet II 232 are provided with square holes that mate with the square structure of the drive shaft 320. Through the square holes, it can be ensured that the driven ratchet I 222 and driven ratchet II 232 can drive the drive shaft 320 to rotate, thereby causing the drive shaft 320 to drive the toothed rod 310 to rotate. Of course, the drive shaft 320 can also adopt other shapes to connect with the driven ratchet I 222 and driven ratchet II 232, which is not limited here.

[0037] Furthermore, in order to limit the wedge sleeve 330 and wedge friction plate 340 on the roller rod 310, a limiting hole 312 is also provided on the roller rod 310. The through pin 350 is inserted into the limiting hole 312 to limit the wedge friction plate 340 and wedge sleeve 330. When the can lid is placed between the cutting rotary drive mechanism 300 and the cutting mechanism 400, the roller disc 311 at the end of the roller rod 310 will cooperate with the cutting mechanism 400 to engage the can lid. When the upper swing handle 510 and the lower swing handle 500 are engaged... When the handle 520 is opened, the ratchet unit I 220 in the power mechanism 200 drives the drive shaft 320 to rotate, thereby driving the toothed rod 310 to rotate. When the toothed rod 310 rotates, it will rotate the through pin 350. The through pin 350 will run relative to the wedge friction plate 340, and through the wedge friction plate 340, the toothed rod 340 will move axially, thereby reducing the meshing distance between the toothed disc 311 and the cutting mechanism 400, realizing the axial locking of the cutting rotation drive mechanism 300, which facilitates the cutting of can lids.

[0038] In addition, a bushing 360 is fitted on the roller rod 310, and a return spring 370 is provided between the bushing 360 and the roller disc 311. When the roller rod 310 is axially locked, the roller disc 311 will squeeze the return spring 370. When the roller rod 310 rotates in the opposite direction with the through pin 350, the through pin 350 will run in the opposite direction relative to the wedge friction plate 340. Under the elastic force of the return spring 370, the roller rod 310 performs axial operation reset, and the meshing distance between the roller disc 311 and the cutting mechanism 400 is reset and increased, thereby realizing the axial unlocking of the cutting rotary drive mechanism 300. The axial running structure of the cutting rotary drive mechanism 300 in this embodiment is the prior art, which can be referred to in Chinese Patent: CN221070938U, so it will not be described in detail here.

[0039] In order for the cutting mechanism 400 to cooperate with the cutting rotation drive mechanism 300, the cutting mechanism 400 in this embodiment includes a fixed locking shaft 410, a cutting wheel 420, and a support wheel 430. An installation groove 110 is provided on the base 100. The fixed locking shaft 410 passes through the installation groove 110. The cutting wheel 420 and the support wheel 430 are respectively sleeved on the fixed locking shaft 410 and located in the installation groove 110. By setting the support wheel 430 and the cutting wheel 420 in the installation groove 110, the cutting wheel 420 cooperates with the toothed disc 311 at the end of the toothed rod 310, thereby realizing the biting and cutting of the can lid, thus forming the can opening function. This cutting mechanism 400 is also prior art. For details, please refer to Chinese Patent: CN221070938U.

[0040] Finally, please see Figure 2 , Figure 3 , Figure 8 and Figure 9 When the cutting rotation drive mechanism 300 and the cutting mechanism 400 cooperate to cut the can lid, the can lid can be directly removed from the can. After removal, in order to facilitate the disposal of the can lid, a reversing reset mechanism 600 is also provided on the base 100 in this embodiment. The reversing reset mechanism 600 includes a pressing member 610 and a spring piece 620. The pressing member 610 can act on the driven sliding ratchet I 222 and the driven sliding ratchet II 232 respectively. The spring piece 620 can elastically reset the pressing member 610. The pressing member 610 is provided with an inclined pressing surface 611 and a stop block 612. When the pressing member 610 is pressed down under the action of external force, the inclined pressing surface 611 of the pressing member 610 will act on the driven sliding ratchet I 222, thereby disengaging the driven sliding ratchet I 222 from the driving fixed ratchet I 221. At the same time, the stop part 612 of the pressing member 610 will limit and press the driven sliding ratchet II 232, so that the driven sliding ratchet II 232 and the driving fixed ratchet II 231 are tightly connected.

[0041] The spring 620 in the reversing reset mechanism 600 abuts against the pressing member 610. When there is no external force applied to the pressing member 610, the spring 620 can elastically reset the pressing member 610. After the pressing member 610 is reset, the driven ratchet I 222 and driven ratchet II 232 can also be reset by the ratchet spring 250.

[0042] In this embodiment, specifically during the cap removal process, after the can cap is cut off, the user can directly press the pressing member 610, causing the inclined pressing surface 611 of the pressing member 610 to act on the driven sliding ratchet I 222. This causes the driven sliding ratchet I 222 to move axially, disengaging from the active fixed ratchet I 221. As the driven sliding ratchet I 222 moves axially, it compresses the ratchet spring 250, thereby causing the ratchet spring 250 to act on the driven sliding ratchet II 232, causing the driven sliding ratchet II 232 to... 2. A tight meshing connection is established between the driven ratchet II 231 and the active fixed ratchet II 231; simultaneously, the stop portion 612 of the pressing member 610 also moves, limiting and pressing the side wall of the driven sliding ratchet II 232, allowing the driven sliding ratchet II 232 to mesh more tightly with the active fixed ratchet II 231. At this time, the user opens the upper swing handle 510 and the lower swing handle 520 of the handle 500. Since the driven sliding ratchet I 222 in the ratchet unit I 220 disengages from the active fixed ratchet I 221, the ratchet... The movable ratchet I 222 cannot rotate the cutting rotary drive mechanism 300. However, through the transmission gear 240, the driving fixed ratchet I 221 can drive the driving fixed ratchet II 231 to rotate. Under the combined action of the stop block 612 and the ratchet spring 250, the driving fixed ratchet II 231 and the driven movable ratchet II 232 are tightly meshed. Therefore, when the driving fixed ratchet II 221 rotates, it can drive the driven movable ratchet II 232 to rotate through frictional pressure, preventing the driven movable ratchet II 232 from engaging with the driving fixed ratchet. When the ratchet II 231 bounces, the driven ratchet II 232 rotates, which in turn drives the drive shaft 320 to rotate in the opposite direction (counterclockwise). This drives the toothed rod 310 to rotate in the opposite direction (counterclockwise). When the toothed rod 310 rotates in the opposite direction (counterclockwise), it can be axially unlocked through the pin 350, thereby increasing the meshing distance between the toothed disc 311 and the cutter wheel 420. When the meshing distance increases, the meshed can cap can be directly discarded, thus realizing the automatic cap discarding function of the can opener.

[0043] In this embodiment, the reversing reset mechanism 600 can be set on the base 100 or on the handle 500. It is only necessary to make the inclined pressing surface 611 and the stop block 612 of the pressing member 610 act on the driven sliding ratchet I 222 and the driven sliding ratchet II 232 respectively, and make the spring piece 620 spring back and reset the pressing member 610. The specific position can be set according to the actual production needs, and is not limited here.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art can readily implement this invention based on the accompanying drawings and the above description; however, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the invention's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this invention; furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this invention still fall within the protection scope of this invention's technical solution.

Claims

1. A knobless can opener, characterized in that: It includes a base, a power mechanism, a cutting rotation drive mechanism, a cutting mechanism, and a handle. The power mechanism, the cutting rotation drive mechanism, and the cutting mechanism are respectively mounted on the base, and the power mechanism is connected to the cutting rotation drive mechanism, while the cutting rotation drive mechanism and the cutting mechanism are in an engaged state. The handle includes an upper swing handle and a lower swing handle, which are rotatably mounted on the upper and lower sides of the base and are respectively connected to the power mechanism. When the upper and lower swing handles are open or closed, they will drive the power mechanism to run, and the power mechanism will drive the cutting rotation drive mechanism to rotate in the same direction.

2. The knobless can opener according to claim 1, characterized in that: The power mechanism includes a power gear, ratchet unit I, ratchet unit II, transmission gear, and ratchet spring. The power gear is connected to the handle and ratchet unit I, respectively. Ratchet unit I and ratchet unit II are connected to the cutting rotation drive mechanism, respectively. The transmission gear is connected to ratchet unit I and ratchet unit II, respectively. The two ends of the ratchet spring abut against ratchet unit I and ratchet unit II, respectively.

3. The knobless can opener according to claim 2, characterized in that: The ratchet unit I includes a driving fixed ratchet I and a driven sliding ratchet I. The driving fixed ratchet I is fixedly connected to the power gear, and one-way teeth I are respectively provided on the driving fixed ratchet I and the driven sliding ratchet I. The one-way teeth I of the driving fixed ratchet I and the one-way teeth I of the driven sliding ratchet I mesh with each other. The driving fixed ratchet I is also provided with bevel teeth I that mesh with the transmission gear.

4. The knobless can opener according to claim 3, characterized in that: The ratchet unit II includes a driving fixed ratchet II and a driven sliding ratchet II. The driving fixed ratchet II and the driven sliding ratchet II are respectively provided with one-way teeth II. The one-way teeth II of the driving fixed ratchet II mesh with the one-way teeth II of the driven sliding ratchet II. The driving fixed ratchet II is also provided with bevel teeth II that mesh with the transmission gear.

5. The knobless can opener according to claim 4, characterized in that: The meshing direction of the active fixed ratchet I and the driven sliding ratchet I is opposite to the meshing direction of the active fixed ratchet II and the driven sliding ratchet II.

6. The knobless can opener according to claim 4, characterized in that: The cutting rotation drive mechanism includes a roller rod, a drive shaft, a wedge sleeve, a wedge friction plate, and a through pin. One end of the roller rod has a roller disc, and the other end is inserted into the base. The wedge sleeve and the wedge friction plate are respectively sleeved on the roller rod, and the wedge friction plate is stacked on the wedge sleeve. One end of the drive shaft is connected to the wedge sleeve, and the other end is connected to ratchet unit I and ratchet unit II respectively. The drive shaft and the toothed wheel are located on the same axis. A limit hole is opened on the toothed wheel, and a pin is inserted into the limit hole to limit the wedge friction plate and the wedge sleeve. A bushing is also fitted on the toothed wheel, and a reset spring is provided between the bushing and the toothed wheel disc.

7. The knobless can opener according to claim 6, characterized in that: One end of the drive shaft is provided with a connector, which is sleeved with a wedge sleeve, and the other end passes through ratchet unit I and ratchet unit II, and is connected to driven sliding ratchet I and driven sliding ratchet II respectively.

8. The knobless can opener according to claim 2, characterized in that: Both the upper and lower swing handles are equipped with racks that mesh with the power gear.

9. The knobless can opener according to claim 4, characterized in that: The base is also provided with a reversing reset mechanism, which includes a pressing member and a spring. The pressing member can act on the driven sliding ratchet I and the driven sliding ratchet II, and the spring can elastically reset the pressing member. The pressing member has an inclined pressing surface and a stop block. When the pressing member presses down, the inclined pressing surface acts on the driven sliding ratchet I, thereby disengaging the driven sliding ratchet I from the driving fixed ratchet I. The stop block then limits and presses against the driven sliding ratchet II.

10. The knobless can opener according to claim 1, characterized in that: The cutting mechanism includes a fixed locking pin shaft, a cutting wheel, and a support wheel. An installation groove is provided on the base, the fixed locking pin shaft passes through the installation groove, and the cutting wheel and the support wheel are respectively sleeved on the fixed locking pin shaft and located in the installation groove.

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